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Class Information
Number: 434/355
Name: Education and demonstration > Question or problem eliciting response > Grading of response form > Comparison of response form with standard answer form > Light detector sensing response
Description: Subject matter wherein the examinee"s response is detected by light sensitive means (e.g., a photocell, etc.)
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6879805 |
Test form having a removable opaque layer, and method and apparatus for printing on the form |
Apr. 12, 2005 |
| 6684052 |
Scanning system for imaging and storing the images of test answer sheets having open-ended questions |
Jan. 27, 2004 |
| 6366760 |
Method for imaging test answer sheets having open-ended questions |
Apr. 2, 2002 |
| 6173154 |
System and method for imaging test answer sheets having open-ended questions |
Jan. 9, 2001 |
| 6112050 |
Scanning and scoring grading machine |
Aug. 29, 2000 |
| 6079624 |
Data processing form using a scanning apparatus |
Jun. 27, 2000 |
| 5902116 |
Electronic learning apparatus with self-adjusting level of difficulty |
May. 11, 1999 |
| 5681170 |
Electronic learning apparatus with self-adjusting level of difficulty |
Oct. 28, 1997 |
| 5085587 |
Scannable form and system |
Feb. 4, 1992 |
| 5046005 |
Test scoring machine |
Sep. 3, 1991 |
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